A capsule endoscope system includes a contact detector that detects contact with an inner wall of a lumen in the subject； a magnet which is equipped in the capsule endoscope； a magnetic field generating device that is provided at a position, which is fixed with respect to the magnet, and generates a guidance magnetic field to apply to the magnet from the outside of the subject； and a magnetic field generation controller that performs control for guidance in a direction in which the capsule endoscope moves, which is the direction of the axis of the lumen, and performs guidance control for separating the capsule endoscope from the inner wall of the lumen based on a result of detection by the contact detector.
